Buildcraft Gates and the Induction Smelter

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zilvarwolf

New Member
Jul 29, 2019
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I was unprepared for the induction smelter change that removed the pulverized dust and rich slag combination. Since I knew I could always just take care of it later if I ran low on gold (or whatever), I was just dropping the rich slag into a barrel and not worrying about it.

Now I've got a barrel full of slag and have to figure out how to use it inline in my system so it doesn't go to waste any longer.

So I've got a fairly typical, I assume, setup for running multiple induction smelters. Ore feeds into relays attached to the bottom of the smelters. Immediately behind the smelters are the sand making duo, making a neat little 2x2x1 block of joy. I wanted to modify one of those smelters to receive slag tonight, so I ripped off the sand machines and started attaching pipes and gates. And there-in lies my question.

I attached a pipe to the purple input and put a gate on it, cycling through the various conditionals until I found 'space in inventory'. I had primed the smelter with 1 rich slag already in the purple/blue slot. My problem is that space in inventory ended up false. If I took out the slag, it was true. There should have been room for 63 more items, right? :)

I assume that I'm basically out of luck using gates for this, and my track record with redpower hasn't been the greatest, so I'm asking for help.

How are you filtering rich slag back into your machines, and/or how would you approach the setup I described?
 

Abdiel

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Jul 29, 2019
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The "space in inventory" condition in normal and iron gates is only true if there is space to put any item in the inventory - i.e. an empty slot. With golden and diamond gates you can specify an item for the condition. If you do, the condition will be true if there is space for that specific item - an empty slot, or a stack of that item that is not yet full.
 

zilvarwolf

New Member
Jul 29, 2019
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Ugh. Thank you. I hooked a gold gate up, but didn't think to put the rich slag in the middle slot when I noticed space in inventory was acting the same.

One of these days I'll figure gates out.

Much appreciated
 

HeffronCM

New Member
Jul 29, 2019
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The "space in inventory" condition in normal and iron gates is only true if there is space to put any item in the inventory - i.e. an empty slot. With golden and diamond gates you can specify an item for the condition. If you do, the condition will be true if there is space for that specific item - an empty slot, or a stack of that item that is not yet full.

Thank you for this information, extremely helpful to me.